1 : a branch of science concerned with the interrelationship of organisms and their environments. 2 : the totality or pattern of relations between organisms and their environment. 3 : human ecology. 4 : environment, climate the moral ecology; also : an often delicate or intricate system or complex the ecology of language.
published its Final Rule in the Federal Register placing tramadol into Schedule IV effective August 18, 2014. (Tramadol is a centrally acting opioid analgesic first approved for use in the U.S. in 1995 under the name âUltramâ.
The Drug Enforcement Administration (DEA) has officially declared tramadol as a Class IV substance, including its salts, isomers, and salts of isomers. The abuse potential of tramadol is comparable to the schedule IV controlled substance propoxyphene; 2  Tramadol has a currently accepted medical use in treatment in the U.S. Tramadol and other tramadol-containing products are approved for marketing by the FDA to manage moderate to moderately severe pain; and,